treewide: Remove trailing whitespace

Remove trailing whitespace in files that aren't typically checked.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I8dfffbdeaadfa694fef0404719643803df601065
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50704
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/vendorcode/intel/edk2/edk2-stable202005/IntelFsp2Pkg/Include/FspEas/FspApi.h

@@ -171,7 +171,7 @@ typedef struct {
   /// This value is only valid if Revision is >= 2.
   ///
   /// Note: This ought to be FSP_EVENT_HANDLER*, but that won't allow calling this binary on x86_64.
-  /// 
+  ///
   UINT32                      FspEventHandler;
   UINT8                       Reserved1[4];
 } FSPM_ARCH_UPD;